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Best Catalytic Converter?

 
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Old 12-01-2010, 01:44 AM
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Best Catalytic Converter?

My car was throwing a check engine light. I had a friend scan it and I searched it up and it was something about the catalytic converter. He suggested I replaced the o2 sensors so I replaced BOTH today. Still throwing the check engine light after I reseted it so I assume my cat is dead. The code, from what I remember, was P0420.

Now question: What would be the best cat for me? No test pipe since I live in Ontario and we have emissions test every 2 years. I've heard the magnaflow hi-flow cat is good. Should I go with that? Cuz there is no way I'm paying $300-400 for an OEM cat...
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Old 12-01-2010, 03:44 AM
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Re: Best Catalytic Converter?

Tha magnaflow is a good product. TBH I'd just go to my local exhaust shop and say I need a cat, how much $? Brand doesn't matter so much - just ensure that the pipe sizes aren't different.
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Old 12-01-2010, 08:10 AM
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Re: Best Catalytic Converter?

i bought this one from Advance Auto Parts.
Advance Auto Parts: Catalytic Converter - ULTRA Direct Fit by Walker - Part 16128

works fine, no codes, passed CO emissions. I know they aren't as strict as CA but it worked for me. No hassles.
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Old 12-01-2010, 01:31 PM
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Re: Best Catalytic Converter?

I live on Ontario. Do I need the california state cat or 49 state cat? I want to use the new o2 sensors I got for it.
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Old 12-01-2010, 01:39 PM
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Re: Best Catalytic Converter?

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Originally Posted by andrewcjduong View Post
I live on Ontario. Do I need the california state cat or 49 state cat? I want to use the new o2 sensors I got for it.
You don't need to worry about it passing US emissions (assuming Ontario Canada, not Ontario, CA) so it honestly doesn't matter. The 49 state legal ones will do just fine, especially since they are usually a lot cheaper. You should be able to use your new o2 sensors regardless. Personally, i reused my old ones w/no issues.
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Old 12-01-2010, 02:11 PM
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Re: Best Catalytic Converter?

I have the same one throttle posted after mine went out. works fine. a cat is a cat basically
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Old 12-02-2010, 01:24 AM
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Re: Best Catalytic Converter?

A CAT IS NOT A CAT.

cat·a·lyst (ktl-st)
n.
1. Chemistry A substance, usually used in small amounts relative to the reactants, that modifies and increases the rate of a reaction without being consumed in the process.

a cat should, in a perfect world, never go bad.
once u add extra gas or HC's and say your burning a little coolant and oil. you are then introducing those chemicals into the cat which it is not designed to burn them. it will damage your cat after prolonged exposure or access amounts. If your stock cat went bad then why would a new one fix it. you may shut the light off temporarily or not at all.
if you are dumping these things into your old cat you are going to be doing the same. you need to find the real source of the problem and address that first.

CA emissions -- look under your hood for an emissions sticker. it will be white. it will say on there if u only need a 49 state or a CA emissions catalytic converter.
CA emissions equipped computers will have more stringent parameters to throw a DTC or diagnostic trouble code.


My advice look a little more into the cause of the problem before you go wasting your money on a cat that will go bad shortly. and a catalytic converter of new standards are not built the same as cats 5 years ago.

I am a mechanic and have taken classes specifically about this subject and others.
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Old 12-02-2010, 01:27 AM
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Re: Best Catalytic Converter?

if he does have a CA emissions vehicle than a 49 state cat may pass emissions testing but WILL fail to keep the light off.
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Old 12-02-2010, 07:13 AM
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Re: Best Catalytic Converter?

Quote:
Originally Posted by 89ChevondaSI View Post
A CAT IS NOT A CAT.

cat·a·lyst (ktl-st)
n.
1. Chemistry A substance, usually used in small amounts relative to the reactants, that modifies and increases the rate of a reaction without being consumed in the process.

a cat should, in a perfect world, never go bad.
once u add extra gas or HC's and say your burning a little coolant and oil. you are then introducing those chemicals into the cat which it is not designed to burn them. it will damage your cat after prolonged exposure or access amounts. If your stock cat went bad then why would a new one fix it. you may shut the light off temporarily or not at all.
if you are dumping these things into your old cat you are going to be doing the same. you need to find the real source of the problem and address that first.

CA emissions -- look under your hood for an emissions sticker. it will be white. it will say on there if u only need a 49 state or a CA emissions catalytic converter.
CA emissions equipped computers will have more stringent parameters to throw a DTC or diagnostic trouble code.


My advice look a little more into the cause of the problem before you go wasting your money on a cat that will go bad shortly. and a catalytic converter of new standards are not built the same as cats 5 years ago.

I am a mechanic and have taken classes specifically about this subject and others.
He lives in Canada, so your entire schpeal about CA emissions is irrelevant. Do you want props for being able to access dictionary.com? Besides thinking that a car approximately 10 years old might not need a new cat and that the engine should be rebuilt, what advice do you have? Oh none.And you posted twice. Also seeing as how the current cat is bad how would not replacing it fix anything? Glad your not my mechanic.
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Old 12-02-2010, 07:40 AM
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Re: Best Catalytic Converter?

I got a magnaflow cat. On my prelude and it works great. I was doing the spark plug fouler trick wit the o2 sensor for a while wit no check engine light, fooling the ecu is pretty fun lol. Anyways yea get a magnaflow cat, I found one on eBay for 111 bux wit free shipping. Ight peace
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Old 12-02-2010, 10:14 AM
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Re: Best Catalytic Converter?

I'll have to agree SOMEWHAT with 89ChevondaSI. The cat should last the life of the car. But my car is a 1999 so it's almost 12 years old. Also, the prelude H22 engines are known to burn oil. What do you expect? and yes I live in Ontario, Canada so emissions aren't as strict as California but we do have to do emissions test every 2 years.

I went ahead and ordered my Magnaflow hi-flow cat. Paid $100 off eBay. The part number was 22644. Hopefully that's the right cat...
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Old 12-02-2010, 02:03 PM
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Re: Best Catalytic Converter?

my point is look under the hood for the emissions sticker if it's just a 49 state you will be fine with that cat.

not all CA emissions cars are just in California DA!

and i never suggested a rebuild i suggested that it need more investigating.

no i don't want props for using dictionary.com. i was just trying to prove a point.
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Old 12-02-2010, 02:35 PM
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Re: Best Catalytic Converter?

Quote:
Originally Posted by 89ChevondaSI View Post
my point is look under the hood for the emissions sticker if it's just a 49 state you will be fine with that cat.

not all CA emissions cars are just in California DA!

and i never suggested a rebuild i suggested that it need more investigating.

no i don't want props for using dictionary.com. i was just trying to prove a point.
There's no sticker. The vehicle is a Canadian car. The cat that I purchased was for 49 states which also includes Canada.

The only way to really stop/reduce the burning of oil is to do a rebuild since all H22 engines burn oil like crazy... or a Kswap.
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Old 12-02-2010, 08:13 PM
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Re: Best Catalytic Converter?

If you are going to be modding the car more then I would suggest look for a hook-up on a smog...if you know what I mean. I know my car will never pass so it has to be passed by someone that knows how!
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Old 12-03-2010, 11:05 AM
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Re: Best Catalytic Converter?

I just want to make sure that cat is right for my car. Can anyone verify this?
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